Here is the full list of all 67 Kick Ass Commandos achievements.
Rescue 1,000 Commandos
Kill 25,000 Enemies
Rank Up a Commando General
Rank Up a Commando Lieutenant General
Rank Up a Commando Major General
Rank Up a Commando Brigadier General
Rank Up a Commando Colonel
Complete Mission Pack 6: Hell on Ice
Survive the Ice Caves in Mission Pack 6
Rescue 500 Commandos
Kill 10,000 Enemies
Defeat Boss Bomber in Mission Pack 6
10,000 Flames Fired by the Player
Complete Mission Pack 5: DNA Test
100 Enemies Killed by Knife Stabs
1,000 Knife Stabs by the Player
25 Enemies Killed by Landmines
500 Enemies Killed by Grenades
5,000 Enemies Killed by Bullets
Rescue 250 Commandos
Unlock Commando Berserker in Mission Pack 6
Win Bumper Tires in Mission Pack 6
Kill the Giant Gator in Mission Pack 5
Rank Up a Commando Lieutenant Colonel
Complete Mission Pack 4: Going Rogue
Unlock Commando Midnight in Mission Pack 4
Rescue the Bunnies in Mission Pack 4
Unlock Commando Ricardo in Mission Pack 4
1,000 Grenades Thrown by the Player
Unlock Commando Gator Jack in Mission Pack 5
1,000 Rockets Fired by the Player
Rank Up a Commando Major
500 Enemies Killed by Rockets
50,000 Bullets Fired by the Player
Kill the Queen Beetle in Mission Pack 5
250 Enemies Killed by Flames
Kill the Monster Yeti in Mission Pack 5
Rank Up a Commando Captain
Complete Mission Pack 2: Krystal Yayo
Survive the Horror in Mission Pack 4
Rank Up a Commando 1st Lieutenant
Rescue Captain Gary in Mission Pack 4
Rescue 100 Commandos
Complete Mission Pack 3: Bombs Away
Kill 2,500 Enemies
Rank Up a Commando 2nd Lieutenant
Destory all the Bombs in Mission Pack 3
250 Enemies Killed by Explosions
Get Major Wood in Mission Pack 3
Unlock Commando Joker in Mission Pack 3
Defeat the Anvil in Mission Pack 3
Rank Up a Commando Sergeant 1st Class
Kill the Rocket Bros in Mission Pack 2
Unlock Commando Blaze in Mission Pack 2
Rank Up a Commando to Staff Sergeant
Complete Mission Pack 1: Basic Training
Unlock Commando 6-Pack in Mission Pack 1
Kill 500 Enemies
Rescue 25 Commandos
Rank Up a Commando to Sergeant
Survive the Dreaded Showers in Mission Pack 1
Unlock Commando Blondie in Mission Pack 1
Rank Up a Commando to Private 1st Class
Rank Up a Commando to Corporal
Kill 100 Enemies
Unlock Commando Mohawk in Mission Pack 1
Complete the Tutorial Mission